Top Description Fields Constructors Methods
org.h2.value

public final Class ExtTypeInfoEnum

extends ExtTypeInfo
Class Inheritance
Imports
java.util.Arrays, .Locale, org.h2.api.ErrorCode, org.h2.engine.CastDataProvider, .Constants, org.h2.message.DbException

Extended parameters of the ENUM data type.

Field Summary

Modifier and TypeField and Description
private final String[]
private final String[]
private TypeInfo

Constructor Summary

AccessConstructor and Description
public
ExtTypeInfoEnum(String[]
the enumerators. May not be modified by caller or this class.
enumerators
)

Creates new instance of extended parameters of the ENUM data type.

Method Summary

Modifier and TypeMethod and Description
public boolean
equals(Object
the reference object with which to compare.
obj
)

Overrides java.lang.Object.equals.

Indicates whether some other object is "equal to" this one.

public int

Returns:

count of elements in enumeration
getCount
()

Get count of elements in enumeration.

public String

Returns:

the enumerator with specified ordinal value
getEnumerator
(int
ordinal value of an enumerator
ordinal
)

Returns an enumerator with specified 0-based ordinal value.

public static ExtTypeInfoEnum

Returns:

enumerators from the left or the right value, or an empty array if both values do not have enumerators
getEnumeratorsForBinaryOperation
(Value
left (first) operand
left
,
Value
right (second) operand
right
)

Returns enumerators for the two specified values for a binary operation.

public StringBuilder
getSQL(StringBuilder
string builder
builder
,
int
formatting flags
sqlFlags
)

Implements org.h2.util.HasSQL.getSQL.

Appends the SQL statement of this object to the specified builder.

pack-priv TypeInfo
public ValueEnum

Returns:

ValueEnum instance
getValue
(int
ordinal value of an enum
ordinal
,
CastDataProvider
the cast information provider
provider
)

Get ValueEnum instance for an ordinal.

public ValueEnum

Returns:

ValueEnum instance
getValue
(String
label string
label
,
CastDataProvider
the cast information provider
provider
)

Get ValueEnum instance for a label string.

private ValueEnum
public int
hashCode()

Overrides java.lang.Object.hashCode.

Returns a hash code value for this object.

private static String
private static StringBuilder
toSQL(StringBuilder builder, String[] enumerators)

Inherited from org.h2.value.ExtTypeInfo:
toString

Field Detail

cleanedback to summary
private final String[] cleaned
enumeratorsback to summary
private final String[] enumerators
typeback to summary
private TypeInfo type

Constructor Detail

ExtTypeInfoEnumback to summary
public ExtTypeInfoEnum(String[] enumerators)

Creates new instance of extended parameters of the ENUM data type.

Parameters
enumerators:String[]

the enumerators. May not be modified by caller or this class.

Method Detail

equalsback to summary
public boolean equals(Object obj)

Overrides java.lang.Object.equals.

Doc from java.lang.Object.equals.

Indicates whether some other object is "equal to" this one.

The equals method implements an equivalence relation on non-null object references:

  • It is reflexive: for any non-null reference value x, x.equals(x) should return true.
  • It is symmetric: for any non-null reference values x and y, x.equals(y) should return true if and only if y.equals(x) returns true.
  • It is transitive: for any non-null reference values x, y, and z, if x.equals(y) returns true and y.equals(z) returns true, then x.equals(z) should return true.
  • It is consistent: for any non-null reference values x and y, multiple invocations of x.equals(y) consistently return true or consistently return false, provided no information used in equals comparisons on the objects is modified.
  • For any non-null reference value x, x.equals(null) should return false.

An equivalence relation partitions the elements it operates on into equivalence classes; all the members of an equivalence class are equal to each other. Members of an equivalence class are substitutable for each other, at least for some purposes.

Parameters
obj:Object

the reference object with which to compare.

Returns:boolean

true if this object is the same as the obj argument; false otherwise.

Annotations
@Override
getCountback to summary
public int getCount()

Get count of elements in enumeration.

Returns:int

count of elements in enumeration

getEnumeratorback to summary
public String getEnumerator(int ordinal)

Returns an enumerator with specified 0-based ordinal value.

Parameters
ordinal:int

ordinal value of an enumerator

Returns:String

the enumerator with specified ordinal value

getEnumeratorsForBinaryOperationback to summary
public static ExtTypeInfoEnum getEnumeratorsForBinaryOperation(Value left, Value right)

Returns enumerators for the two specified values for a binary operation.

Parameters
left:Value

left (first) operand

right:Value

right (second) operand

Returns:ExtTypeInfoEnum

enumerators from the left or the right value, or an empty array if both values do not have enumerators

getSQLback to summary
public StringBuilder getSQL(StringBuilder builder, int sqlFlags)

Implements org.h2.util.HasSQL.getSQL.

Doc from org.h2.util.HasSQL.getSQL.

Appends the SQL statement of this object to the specified builder.

Parameters
builder:StringBuilder

string builder

sqlFlags:int

formatting flags

Returns:StringBuilder

the specified string builder

Annotations
@Override
getTypeback to summary
pack-priv TypeInfo getType()
getValueback to summary
public ValueEnum getValue(int ordinal, CastDataProvider provider)

Get ValueEnum instance for an ordinal.

Parameters
ordinal:int

ordinal value of an enum

provider:CastDataProvider

the cast information provider

Returns:ValueEnum

ValueEnum instance

getValueback to summary
public ValueEnum getValue(String label, CastDataProvider provider)

Get ValueEnum instance for a label string.

Parameters
label:String

label string

provider:CastDataProvider

the cast information provider

Returns:ValueEnum

ValueEnum instance

getValueOrNullback to summary
private ValueEnum getValueOrNull(String label, CastDataProvider provider)
hashCodeback to summary
public int hashCode()

Overrides java.lang.Object.hashCode.

Doc from java.lang.Object.hashCode.

Returns a hash code value for this object. This method is supported for the benefit of hash tables such as those provided by java.util.HashMap.

The general contract of hashCode is:

  • Whenever it is invoked on the same object more than once during an execution of a Java application, the hashCode method must consistently return the same integer, provided no information used in equals comparisons on the object is modified. This integer need not remain consistent from one execution of an application to another execution of the same application.
  • If two objects are equal according to the equals method, then calling the hashCode method on each of the two objects must produce the same integer result.
  • It is not required that if two objects are unequal according to the equals method, then calling the hashCode method on each of the two objects must produce distinct integer results. However, the programmer should be aware that producing distinct integer results for unequal objects may improve the performance of hash tables.
Returns:int

a hash code value for this object

Annotations
@Override
sanitizeback to summary
private static String sanitize(String label)
toSQLback to summary
private static StringBuilder toSQL(StringBuilder builder, String[] enumerators)